Holder



FIG. 1 is a perspective view showing the new design for a holder;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof; and,

FIG. 4 is a top view thereof; the bottom, left side, and right side views being identical.

The portions of the holder in FIG. 3 shown in broken lines are included to show features that form no part of the claimed design. 

CLAIM The ornamental design for a holder, as shown and described. 